Punching and shearing machine.



L. D. JANNELL.

PUNGHING AND SHEABING MACHINE.

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PUNGHING AND SHEARING MACHINE.

APPLICATION FILED JULY I, 1911.

1,068,344. Patented July 272, 1913 4 SHEETS-SHEET 3. 72, f/f X54 o 75 7/6&9 65

L. D. JANNELL.

PUNCHING AND SHEARING MACHINE.

4 SHEETS-SHEET 4.

Patented July 22, 1913.

APPLICATION FILED JULY l, 1911.

COLUMBIA PLANOGRAPH c0..w,\sHlNaToN, D. c.

UNITED STATES PATENT OFFICE.

LESLIE DAVID JANNELL, OF RUMFORD, MAINE, ASSIGNOR TO CLARK FOUNDRYCOMPANY, OF RUMQFOED, MAINE, A CORPORATION OF MAINE.

PUNCHING AND Sl-IEARING MACHINE.

To all whom @'25 may concern:

Be it known that I, LESLIE llivm JAN- NELL, a citizen oitl the TLlnitedStates, and a resident of Bumt'ord, in t-he county ot' OX- ord and Stateoit Maine, have invented certain new and useful Improvements in Punchingand Shearing Machines, of which the following is a specification.

llhis invention relates to machines for punching and shearing or cuttingmetal articles, such as tires, hoops, I-beams, angleirons and othermetallic articles of various regular or irregular shapes, a machine ofthis general type being shown in Letters Patent No. 825,731, granted tome July 10, 1906.

In many respects, the machine described and claimed hereinafter issubstantially the same as in my former patent, the present improvementrelating especially to a structure which will enable either one of threeoperating instrumentalities to be employed according to the nature otthe work to be performed, all ot' said instrumentalities operatingsimultaneously so thatthe work can be do-ne at either point, or byeither set of instrumentalities, without making any preliminary changesin the machine itself.

The object of t-he present invention is to provide means in machines or'the character mentioned, all tending to simplify the operations.

To these ends the invention consists in the improvements which I willnow proceed to describe and claim.

Ot' the accompanying drawings, Figure l is a side elevation of a`machine embodying my present improvements. Fig. 2 is a front elevationof the upper portion of the machine shown in Fig. l, the parts beingbroken out to illustrate details. Fig. 3 is a rear elevation of a partof the machine shown in Fig. 2. Fig. el is a side elevation chiefly ofthe moving partsl of the machine, partly in section on the line i ofFig. 2. Fig. 5 is a detail elevation of a portion of the machine shownin Fig. l, on a larger scale. 6 represents av section on line 6-6 ofFig. Fig. 7 is an elevation of parts shown in Fig. 2, on a larger scaleand showing the cutters separated. Fig. 8 represents a section on line88 ot' Fig. 5, on a smaller scale.

Similar reference characters indicate the same or similar parts in allof the views.

Specification of Letters Patent.

Application led July l', 1911.

Patented July 22, i913.

Serial No. 636,428.

The frame of the machine l0 having a E suitable base ll, is provided onits two sides with projections l2 having veical guideways for two rods13. The rods 13 rec-iprocate vertically, as hereinafter described, andcarry with them all ot' the movable parts of the punching and shearinginstrumentalities.

As will be best understood by reference to Fig. et, the verticallymovable portions of the machine are so connected to the rods 123 as toreciprocate in the path prescribed by the guides for the said rods 13.Before describing the vertical portions of the machine, however, themembers which are stationary and which cooperate with the movablemembers will be described. rIhe frame. l() is formed wit-h a` recess 14,which is open at one side, as best indicated by comparing Figs. 2 and 7.Suitably secured across the bottom of the opening leading from therecess ll is the lower or fixed shear blade 15. Suitably secured to theupper end of the fixed portion 10 of the frame is an angular shear blade16 (see Figs. 5 and G).

A punch-holding and guiding yoke 1S (see Figs. l, 2, and 4) is removablymounted in ways 17, provided in the frame of the machine, said yokehaving a female die member 19, the upper or overhanging portion of theyoke forming the guide for the male die member, presently described. Asbest shown in Fig. 2, partly by dotted lines, one side of the base ofthe yoke is engaged by the block 20, which is normally pressed outwardlyby the spring 2l. The outer side face of said block is formed with a`conical recess 22, which is engaged by the screw 23, having a handle24;. Said handle is shown as pivoted to the screw so that. a halfrotation can be given to the screw and the handle then released andpermitted to depend so that the gravity of said handle will preventchanging ot the adjustmentof the screw. When the screw is in theposition shown in Fig. 2, the yoke is firmly gripped by means of theblock 20, but if the screw be loosened, the spring 2l will elevate theblock 2O sutliciently so that the pressure of the inclined face of theblock against the inclined face of the yoke will be relievedsufficiently to permit the yoke to be bodily removed. The entire frame10 is firmly recessed to receive the carrier, 'the main or body port-ionotwhich is shown in Fig. 4:, at

25. This carrier-frame 25 has connected to it the members which coperatewith the shear blades and female punching member that have beenmentioned. The said carrier-frame 25 is provided with projections orears 26, in which the rods 13 are secured, the lower ends of said rods13 being suitably secured to projections at the foot of thecarrier-frame 25. Additional guiding members carried by theframe 25 tocooperate with portions of the main frame 10 are a lip 27 and` astraight vertical rear wall 28, which is in operative contact with ears29 of the fra-me 10. The carrier-frame 25 is provided with an upper roll30 and a lower roll 31. Mounted in the main frame 10 is a shaft 32having two cams 33 and 34, adapted to engage, respectively, the rolls 30and 31, so that as said shaft and its cams are rotated, as hereinafterdescribed, the carrier-frame 25 and the parts connected thereto will bevertically reciprocated.

Secured to the shaft 32 is a gear 35 which is engaged by a pinion 36,indica-ted by dotted lines in F ig. 1, said pinion being loose on shaft37, but having suitable clutch mechanism 38 whereby it may be connectedto said shaft. The shaft 37 has a gear 39, in-

dicated by dotted lines in Fig. 1, said gear being driven by the pinion40 on the main driving-shaft 41, said shaft having a pulley 42, adaptedto be driven by the belt 43. The position of the clutch 38 so as toeffect the engagement or disengagement of t-he pinion to startor stopthe'inachine, is controlled by the yoke 44, pivoted at 45 to a collar 46on shaft 32. An arm 47 on the yoke, which extends to the right (Fig. 1)from the pivotal point 45, coacts with a lug 48 to effect the stoppageof the gear 35 at a definite point. as hereinafter described. A pin 49carried by the yoke is acted upon by a cam lug 50 carried by the gear35. The pin 49 is adjustable along a. slot 51, so that said pin can bemoved to positions so that it will not be acted upon by the lug` 50, ifit be desired that the machine shall run continuously. The operation ofthis portion of the machine is such that when the cam lug 50 engages thepin 49, it causes the disengagement of the clutch, so that although theshafts 37 and 41 may continue to rotate, no power will be imparted tothe gear 35, and consequently, the cams of shaft 32 will not aflect thecarrier and its shearing and punching members. The lugs 48 and 5()occupy such positions relatively to the axis of rotation of the gear 35that immediately after the lug 50 has acted to separate the clutch andhas just passed the pin 49, the lug 48 will contact with the under sideof arm 47 and positively stop the gear at that point of itsrotation. Inorder that the machine may be started again, I provide a rock-shaft 52having an arm at one end, provided with a treadle 53, another arm 54 ofsaid rockshaft being connected to the yoke 44 in such a manner that theattendant, by downward pressure upon the treadle 53 can actuate the yoke44 to shift the clutch and reengage the pinion 36 with the shaft 37.This movement of the yoke, oscillating upon its pivots 45, throws thearm 47 out of position in front of the lug' 48, so as to remove the stopthat operated to effect the stoppage of the machine.4 i

As shown by comparing Figs. 4 and 7, the carrier-frame 25 is providedwith a projection 55, which extends into a recess14 and is provided witha shear blade 56 to cooperate with the fixed blade 15, said blades 56and 15 being especially Vfor shearing I-beams or laterally fiat work,Vwhich may, however, be curved, or otherwise shaped longitudinally.Secured to the frame 25 is an. angular blade 57, said blade coperatingvwith the angular fixed blade 16 for cutting angle bars.

Adjustably mounted in a vertical aperture formed in the upper portion ofthel carrierframe 25 is a. plunger 58, said plunger having a shoulderedrecess 59, to which is coupled the upper end of the male die-holder 60.The coupling recess is open in such direct-ion that when the yoke 18 isremoved, the die-holder 60 can be readily removed with the yoke. Thedie-holder 60 carries a die such as indica-ted at 61, said die-holderbeing mounted to reciprocate vertically in the upper arm of said yoke.The plunger 58 is held from rot-ating in its socket, while permitted tovertically reciprocate vby a screw 62 which enters a longitudinal groovein the side of said plunger. Said plunger carries a pin 63 which entersa cam groove 64 in a sleeve 65. sleeve 65 is formed an annular groovewhich receives a collar 66, the latter being fastened as by screws 67,to the top of the carrierframe 25, so that of course, the sleeve 65 willalways reciprocate vertically with the carrier 25, said sleeve, however,being free to 10oVV In the lower end of said rotate. The sleeve isinclosed by a 'cap 68, Y

which is secured to it, as by a screw 69 (Fig. 2). The cap is providedwith a handwheel 70. It will now be understood that by rotating thehand-wheel 70, the sleeve 65 will also be rotated so that the cam groove64 formed in said sleeve will, through the pin 63, cause the plunger 58and the male die-holder to be shifted vertically. This construction issuch that, by rotating the hand-wheel 70, the male die 61 can betemporarily lowered to center the work. Of course, when the punchingoperation occurs,

of the cam groove 64. A small upright or standard 71, rising from thecarrier-frameV 25, has an arm 7 2 provided with an Vinvert-ed cup member73 at its outer end. A pin 74 the pin 63 must occupy the center or apexrising from the. top center of the cap 68 passes through said cup 73. Aspring 75 coiled about the pin 74s acts to exert sufficient pressureupon the cap 68 to prevent rattling during the operation ot' punching.

During the cutting or shearing operation of metal, there is always atendency to bend or oscillate the piece ot metal out of the path orplane of feed of the piece of work. To oppose tendency of the piece ofmetal or bar to oscillate upo-n the knife 15, l provide a gage TG whichis adjustable to suit different thicknesses of the work. Ot course, theplane ot' the cut is usually desired at a right angle to the length ofthe piece. However, when the angle ot the plane of the cut has beendetermined, it is desirable of course, that all other similar piecesshall be cut at the same angle. The gage 'TG has a guiding portion TTwhich lits suitable ways. A screw TS is pinned to the gage as at T9 sothat the screw cannot rotate. The screw is mounted to move freelyvertically in apertures formed in lugs 80, a nut S1 in engagement .withsaid screw being held between said lugs. By rotating the nut S1, theheight of the gage T6 can be varied so as to control the angle of cut ofthe shears 15, 56, it being understood that the operator, when heintroduces the work indicated b v dotted lines in Fig. T, will hold thework against the under tace of the gage T6. To determine the length ofthe piece cut ott, an end gage S2 is adjustably mounted on a ixedsupporting rod or pin 83. An angular gage is provided for the work thatis being operated upon by the blades 1G, 57, (see Figs. 1, 5, 6 and 8).The frame 10 is formed with a vertical rib 81. To the lower end of saidrib is secured, so as to rotate without longitudinal movement., a screw85 having a knob or hand-wheel 86. Said screw engages a yoke S?. To theupper ends of the yoke S7 is secured an angular gage SS as by bolt-s 89and cheek pieces 90. rlhe connections between the yoke and angular gageinclude a plate or center piece 91, which is provided with a verticalslot 92. A guiding screw 93 passes through said slot, so that saidcenter piece and the yoke may be adjusted vertically by the screw 85.

Vhen the piece of work to be operated upon is an angle-bar, it isinserted in the direction of the arrow in Fig. 6, the operator holdingthe work against the under tace of the gage 88, so that, when t-he blade57 descends, the gage 8S will resist tendency to tilt the work or varythe angle thereof, due to the operation of the shearing.

lt will be understood, of fourse, that it the sleeve is turned so thatthe Pin 63 is not at the apex of the cam groove 64, which apex forms alocking recess for said pin, then the pressure result-ing from thepunching operation will cause the sleeve 65 to rotate so that the pinwill occupy said recess or apex. The spring T assists in insuring therelative positions ot these parts so that said pin will occupy theposition shown in Figs. 1 and 2.

I claim 1. A combined punching and cutting machine having a fixed framewith a plurality of shears, said frame carrying also one of the membersof a punching couple, a movable carrier having shears to cooperate withthose of the lixed frame and having the other member ot the punchingcouple connected to it, and adjustable gages for the work being cut oroperated upon by the shears.

2. A punching machine comprising a supporting frame having asubstantially hori- Zontal seat provided with guides, a die-holding andguiding yoke having a base movable on said seat between the guides, saidbase having an inclined side, a. spring-supported block having aninclined side to bear against said yoke base and having a conicalrecess, and a screw having a conical tip to engage said recess.

3. In a machine of the character described, iixed and movable coperatingdie members, means for actuating the movable die members, and means formanually varying the position of the movable die member relatively tothe fixed die member, said means including a sleeve having a cam slot, apin project-ing from the die holder into said slot, and means foradjusting said sleeve.

et. In a machine of the character described, a lixed die member and amovable die member, a plunger connected with the movable die member toactuate it, a pin projecting from said plunger, a sleeve inclosing theplunger and having a cam slot receiving said pin, and means whereby saidsleeve may be rotatively adjusted.

5. 1n a machine of the character described, a. fixed die member and amovable die member, a plunger connected with the movable die member toactuate it, a pin projecting from said plunger, a sleeve inclosing theplunger and having a cam slot receiving said pin, a cap inclosing saidsleeve and having a hand wheel, and means for yieldingly exertingpressure on said cap.

In testimony whereof I have atlixed my signature, in presence ot twowitnesses.

LESLIE DAVID JANNELL.

fitnesses L. 1V. BLANCHARD,

P. B. CLARK.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

